Single-coil 24V 60W code-free fan driver
MLX90416 Melexis
The MLX90416, a 24V/60W sensorless single-coil BLDC driver specifically designed for motor, fan and pump applications across both consumer electronics and industrial domains.
Top features
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Sensorless 1-coil NoHall technology
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Open and closed loop speed control:
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Up to 40k mRPM (for 2 pole-pair motors)
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±1.5 % closed loop speed accuracy
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Soft-switching
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Lead angle control
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Configurable motor start & stop options:
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Forward windmilling
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Brake & start
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Integrated bridge driver
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135 mOhm (HS+LS)
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Programmable current limit up to 4.0 A
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8.0 A braking current
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Integrated supply clamp
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Operating range:
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Supply voltage range from 6.7 V to 27.6 V
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Junction temperature from -40 °C to 150 °C
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Extensive programmability (MTP)
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Sleep mode option
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8-point configurable speed curves
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Synthesized FG output for easy retrofitting of legacy 3-phase solutions
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Protections & Diagnostics
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LRP / UVP / OCP / TSD
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Hot unplug handling
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Package RoHS compliant
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DFN10 3.5x3 mm2 with exposed pad
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Single-coil 24V 60W code-free fan driver - MLX90416
Product description
The MLX90416 is a member of the No-Hall sensorless 1-coil BLDC motor driver IC’s for driving 24 V applications. It can be configured for a wide range of applications and supports replacing legacy sensorless 3-phase motors.
The device drives 12|24 V 1-coil motors, typically without the need for an external TVS for protection. It integrates two half bridges with very low RDSon, supporting 8 A braking current and a programmable current limit up to 4 A.
The MLX90416 is controlled via a PWM input, and provides speed feedback through a programmable FG output. Extensive speed curve fitting is available with 8 configuration points, up to 40k mRPM (for 2 pole-pair motors). The non-volatile memory can be programmed through I2C and is “Multiple Times Programmable”.
The IC features a wide range of protections, including: “Locked Rotor Protection”, “Under Voltage Protection” with hot unplug handling, “Thermal Shut Down” and “Over Current Protection”.
The code-free plug-and-play functionality avoids the need for software validation of MCU-based solutions, freeing up key engineering resources for realizing more projects in less time, and enabling faster production ramp-up.
In order to support new developments a FandriverEVB2 (device control & programming) and a FandriverProgrammerB (multiple device programming) are available. To speed up validation, the GUI includes a motor parameter extraction tool.
Application Examples
- 24 V Industrial fans
- 24 V Fans for home appliance & white goods
- General 24 V fans & pumps up to 60 W
Features and benefits
-
Sensorless 1-coil NoHall technology
-
Open and closed loop speed control:
-
Up to 40k mRPM (for 2 pole-pair motors)
-
±1.5 % closed loop speed accuracy
-
Soft-switching
-
Lead angle control
-
-
Configurable motor start & stop options:
-
Forward windmilling
-
Brake & start
-
-
Integrated bridge driver
-
135 mOhm (HS+LS)
-
Programmable current limit up to 4.0 A
-
8.0 A braking current
-
Integrated supply clamp
-
-
Operating range:
-
Supply voltage range from 6.7 V to 27.6 V
-
Junction temperature from -40 °C to 150 °C
-
-
Extensive programmability (MTP)
-
Sleep mode option
-
8-point configurable speed curves
-
Synthesized FG output for easy retrofitting of legacy 3-phase solutions
-
-
Protections & Diagnostics
-
LRP / UVP / OCP / TSD
-
Hot unplug handling
-
-
Package RoHS compliant
-
DFN10 3.5x3 mm2 with exposed pad
-
Documents and tools
Product abstracts(s)
Product flyer(s)
Selection guide(s)
Environmental
IC handling and assembly
Videos
All-in-one single-coil sensorless BLDC driver IC
Discover Melexis NoHall series, our sensorless single-coil BLDC drivers specifically designed for motor, fan and pump applications across both consumer electronics and industrial domains.
